CN107474451A - Corrosion-resistant rotating shaft sealing ring PTFE resin composite and preparation method thereof - Google Patents
Corrosion-resistant rotating shaft sealing ring PTFE resin composite and preparation method thereof Download PDFInfo
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- CN107474451A CN107474451A CN201710868181.3A CN201710868181A CN107474451A CN 107474451 A CN107474451 A CN 107474451A CN 201710868181 A CN201710868181 A CN 201710868181A CN 107474451 A CN107474451 A CN 107474451A
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- corrosion
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- rotating shaft
- resistant rotating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2255—Oxides; Hydroxides of metals of molybdenum
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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Abstract
The invention discloses a kind of corrosion-resistant rotating shaft sealing ring PTFE resin composite, it is made up of by mass percentage following components：Carbon fiber：5 15%, modified montmorillonoid：6 12%, molybdenum oxide：2 5%, nonyl phenol：0.1 0.5%, coupling agent：1 2%, surplus PTFE；The modified montmorillonoid is that sodium-based montmorillonite forms through the modification of the cerul benzoglioxaline salt of bromination 1,3.Its preparation method is also disclosed.In the present invention, addition carbon fiber can increase the stretching, compression and bending modulus of material in PTFE, improve the decay resistance of material.Modified montmorillonoid, molybdenum oxide can effectively improve the mechanical performance and corrosion resistance of material, and nonyl phenol can effectively improve the decay resistance of material.Corrosion-resistant rotating shaft sealing ring has good corrosion resistance made from material of the present invention, and in the case where being contacted for a long time with refrigeration oil, mechanical performance does not also decline, service life length.
Description
Technical field
The present invention relates to the air-conditioning screw compressor on new-energy automobile to be answered with corrosion-resistant rotating shaft with sealing ring PTFE resin
Condensation material and preparation method thereof, belong to field of compound material.
Background technology
Polytetrafluoroethylene (PTFE)（ PTFE）A kind of outstanding polymeric material of combination property, have fabulous resistant of high or low temperature and
Chemical resistance, and dielectric properties are excellent, the minimum heat endurance of coefficient of friction is good, can in -260 DEG C ~ 260 DEG C long-term uses,
But pure PTFE has cold flow properties, poor dimensional stability, dielectric strength is low, wears the shortcomings of big.
Air-conditioning screw compressor is the compressor that refrigeration is played with compression refrigerant, by a fixed involute whirlpool
Capstan and an involute motion scroll plate composition in eccentric convolution translation.Rotating shaft is one direct in use with sealing ring
Refrigerant and lubrication refrigeration oil are touched, and refrigeration oil has corrosivity, therefore seal ring material needs stronger corrosion resistance.
The content of the invention
It is an object of the invention to provide a kind of corrosion-resistant rotating shaft sealing ring PTFE resin composite, there is high heat conduction
Property.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of corrosion-resistant rotating shaft sealing ring PTFE resin
Composite, it is characterised in that：It is made up of by mass percentage following components：
Carbon fiber：5-15%
Modified montmorillonoid：6-12%
Molybdenum oxide：2-5%
Nonyl phenol：0.1-0.5%
Coupling agent：1-2%
Surplus is PTFE；
The modified montmorillonoid is that sodium-based montmorillonite forms through the modification of bromination bis--cetyls of 1,3- benzoglioxaline salt.
Preferably, the coupling agent is silane coupler.
Preferably, the molybdenum oxide particle diameter is 10-100 μm.
Preferably, the acidified modification of the carbon fiber.
The invention also discloses the preparation method of above-mentioned corrosion-resistant rotating shaft sealing ring, its step includes：
（1）, 10 parts of sodium-based montmorillonites, 3 parts of sodium hydroxides, 2 parts of bromination 1,3- bis--cetyl benzoglioxaline salts are added to the water
After being warming up to 60 DEG C of stirrings, centrifugation obtains sediment, and sediment is washed to neutrality, dries, obtains modified montmorillonoid；
（2）, carbon fiber add acid solution in heating stirring after filter, the carbon fiber being acidified；
（3）, weigh raw material according to quantity, add in high speed mixer, taken out after 2 ~ 3min of high-speed stirred, place 2 ~ 6h；
（4）, using press carry out cold moudling, 10 ~ 30MPa of pressure, dwell time 1min, the demoulding obtain preforming sample；
（5）, preforming sample is put into sintering furnace, be sintered 3 ~ 6h at 380 ± 5 DEG C, room temperature naturally cooled to stove,
Machining obtains corrosion-resistant rotating shaft sealing ring.
Preferably, the acid solution is the concentrated sulfuric acid or concentrated nitric acid.
In the present invention, carbon fiber is added in PTFE can increase the stretching, compression and bending modulus of material, reduction heat
The coefficient of expansion, expand caused leakage hidden danger after reducing temperature rise；Creep can also be reduced simultaneously, increase hardness, improve material
The decay resistance of material.Carbon fiber is modified processing and preferably can be distributed in PTFE.Modified montmorillonoid, molybdenum oxide can have
Effect improves the mechanical performance and corrosion resistance of material, and nonyl phenol can effectively improve the decay resistance of material.With material of the present invention
Air-conditioning screw compressor made from material on new-energy automobile has good corrosion resistance with corrosion-resistant rotating shaft sealing ring,
Mechanical performance does not also decline in the case of being contacted for a long time with refrigeration oil, service life length.
Embodiment
Embodiment 1-4
The preparation method of the corrosion-resistant rotating shaft sealing ring of this air-conditioning screw compressor, its step include：
（1）, 10 parts of sodium-based montmorillonites, 3 parts of sodium hydroxides, 2 parts of bromination 1,3- bis--cetyl benzoglioxaline salts are added to the water
After being warming up to 60 DEG C of stirrings, centrifugation obtains sediment, and sediment is washed to neutrality, dries, obtains modified montmorillonoid；
（2）, carbon fiber add acid solution in heating stirring after filter, the carbon fiber being acidified；
（3）, weigh raw material according to quantity, add in high speed mixer, taken out after 2 ~ 3min of high-speed stirred, place 2 ~ 6h；
（4）, using press carry out cold moudling, 10 ~ 30MPa of pressure, dwell time 1min, the demoulding obtain preforming sample；
（5）, preforming sample is put into sintering furnace, be sintered 3 ~ 6h at 380 ± 5 DEG C, room temperature naturally cooled to stove,
Machining obtains air-conditioning screw compressor with corrosion-resistant rotating shaft sealing ring.
Performance test is carried out with corrosion-resistant rotating shaft with sealing ring to obtained air-conditioning screw compressor, test result is shown in Table 2.
The embodiment 1-4 of table 1 component table
The embodiment 1-4 sealing ring performance tests of table 2
Claims (6)
1. corrosion-resistant rotating shaft sealing ring PTFE resin composite, it is characterised in that：By mass percentage by following components structure
Into：
Carbon fiber：5-15%
Modified montmorillonoid：6-12%
Molybdenum oxide：2-5%
Nonyl phenol：0.1-0.5%
Coupling agent：1-2%
Surplus is PTFE；
The modified montmorillonoid is that sodium-based montmorillonite forms through the modification of bromination bis--cetyls of 1,3- benzoglioxaline salt.
2. corrosion-resistant rotating shaft according to claim 1 sealing ring PTFE resin composite, it is characterised in that：The idol
Connection agent is silane coupler.
3. corrosion-resistant rotating shaft according to claim 2 sealing ring PTFE resin composite, it is characterised in that：The oxygen
It is 10-100 μm to change molybdenum particle diameter.
4. corrosion-resistant rotating shaft according to claim 3 sealing ring PTFE resin composite, it is characterised in that：The carbon
The acidified modification of fiber.
5. the preparation method of the corrosion-resistant rotating shaft sealing ring any one of claim 1-4, its step include：
（1）, 10 parts of sodium-based montmorillonites, 3 parts of sodium hydroxides, 2 parts of bromination 1,3- bis--cetyl benzoglioxaline salts are added to the water
After being warming up to 60 DEG C of stirrings, centrifugation obtains sediment, and sediment is washed to neutrality, dries, obtains modified montmorillonoid；
（2）, carbon fiber add acid solution in heating stirring after filter, the carbon fiber being acidified；
（3）, weigh raw material according to quantity, add in high speed mixer, taken out after 2 ~ 3min of high-speed stirred, place 2 ~ 6h；
（4）, using press carry out cold moudling, 10 ~ 30MPa of pressure, dwell time 1min, the demoulding obtain preforming sample；
（5）, preforming sample is put into sintering furnace, be sintered 3 ~ 6h at 380 ± 5 DEG C, room temperature naturally cooled to stove,
Machining obtains corrosion-resistant rotating shaft sealing ring.
6. the preparation method of corrosion-resistant rotating shaft sealing ring according to claim 5, it is characterised in that：The acid solution is dense
Sulfuric acid or concentrated nitric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868181.3A CN107474451A (en) | 2017-09-22 | 2017-09-22 | Corrosion-resistant rotating shaft sealing ring PTFE resin composite and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868181.3A CN107474451A (en) | 2017-09-22 | 2017-09-22 | Corrosion-resistant rotating shaft sealing ring PTFE resin composite and preparation method thereof |
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| CN107474451A true CN107474451A (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710868181.3A Pending CN107474451A (en) | 2017-09-22 | 2017-09-22 | Corrosion-resistant rotating shaft sealing ring PTFE resin composite and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073612A (en) * | 2019-12-31 | 2020-04-28 | 深圳德邦界面材料有限公司 | Resin-free low-permeability oil heat conduction mud and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875941A (en) * | 2012-09-26 | 2013-01-16 | 广州机械科学研究院有限公司 | Polytetrafluoroethylene sealing material for highly wear-resistant oil cylinder, method for preparing polytetrafluoroethylene sealing material and application of polytetrafluoroethylene sealing material |
| CN104194232A (en) * | 2014-09-12 | 2014-12-10 | 沈阳北阳氟塑料有限公司 | Modified polytetrafluoroethylene filling material and preparation method thereof |
-
2017
- 2017-09-22 CN CN201710868181.3A patent/CN107474451A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875941A (en) * | 2012-09-26 | 2013-01-16 | 广州机械科学研究院有限公司 | Polytetrafluoroethylene sealing material for highly wear-resistant oil cylinder, method for preparing polytetrafluoroethylene sealing material and application of polytetrafluoroethylene sealing material |
| CN104194232A (en) * | 2014-09-12 | 2014-12-10 | 沈阳北阳氟塑料有限公司 | Modified polytetrafluoroethylene filling material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073612A (en) * | 2019-12-31 | 2020-04-28 | 深圳德邦界面材料有限公司 | Resin-free low-permeability oil heat conduction mud and preparation method thereof |
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Application publication date: 20171215 |
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